TSTP Solution File: LCL498+1 by iProver---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.9
% Problem  : LCL498+1 : TPTP v8.1.2. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n020.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Fri May  3 02:38:02 EDT 2024

% Result   : Theorem 74.54s 10.83s
% Output   : CNFRefutation 74.54s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   25
%            Number of leaves      :   22
% Syntax   : Number of formulae    :  141 (  45 unt;   0 def)
%            Number of atoms       :  279 (  73 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :  256 ( 118   ~; 112   |;   2   &)
%                                         (  13 <=>;  11  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    7 (   3 avg)
%            Maximal term depth    :    7 (   2 avg)
%            Number of predicates  :   11 (   9 usr;   9 prp; 0-2 aty)
%            Number of functors    :    4 (   4 usr;   1 con; 0-2 aty)
%            Number of variables   :  236 (  11 sgn  74   !;   2   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ( modus_ponens
  <=> ! [X0,X1] :
        ( ( is_a_theorem(implies(X0,X1))
          & is_a_theorem(X0) )
       => is_a_theorem(X1) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',modus_ponens) ).

fof(f21,axiom,
    ( cn3
  <=> ! [X3] : is_a_theorem(implies(implies(not(X3),X3),X3)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cn3) ).

fof(f22,axiom,
    ( r1
  <=> ! [X3] : is_a_theorem(implies(or(X3,X3),X3)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',r1) ).

fof(f23,axiom,
    ( r2
  <=> ! [X3,X4] : is_a_theorem(implies(X4,or(X3,X4))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',r2) ).

fof(f24,axiom,
    ( r3
  <=> ! [X3,X4] : is_a_theorem(implies(or(X3,X4),or(X4,X3))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',r3) ).

fof(f25,axiom,
    ( r4
  <=> ! [X3,X4,X5] : is_a_theorem(implies(or(X3,or(X4,X5)),or(X4,or(X3,X5)))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',r4) ).

fof(f26,axiom,
    ( r5
  <=> ! [X3,X4,X5] : is_a_theorem(implies(implies(X4,X5),implies(or(X3,X4),or(X3,X5)))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',r5) ).

fof(f30,axiom,
    ( op_implies_or
   => ! [X0,X1] : implies(X0,X1) = or(not(X0),X1) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',op_implies_or) ).

fof(f32,axiom,
    op_implies_or,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_op_implies_or) ).

fof(f35,axiom,
    modus_ponens,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_modus_ponens) ).

fof(f36,axiom,
    r1,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_r1) ).

fof(f37,axiom,
    r2,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_r2) ).

fof(f38,axiom,
    r3,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_r3) ).

fof(f39,axiom,
    r4,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_r4) ).

fof(f40,axiom,
    r5,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_r5) ).

fof(f45,conjecture,
    cn3,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',luka_cn3) ).

fof(f46,negated_conjecture,
    ~ cn3,
    inference(negated_conjecture,[],[f45]) ).

fof(f52,plain,
    ( cn3
  <=> ! [X0] : is_a_theorem(implies(implies(not(X0),X0),X0)) ),
    inference(rectify,[],[f21]) ).

fof(f53,plain,
    ( r1
  <=> ! [X0] : is_a_theorem(implies(or(X0,X0),X0)) ),
    inference(rectify,[],[f22]) ).

fof(f54,plain,
    ( r2
  <=> ! [X0,X1] : is_a_theorem(implies(X1,or(X0,X1))) ),
    inference(rectify,[],[f23]) ).

fof(f55,plain,
    ( r3
  <=> ! [X0,X1] : is_a_theorem(implies(or(X0,X1),or(X1,X0))) ),
    inference(rectify,[],[f24]) ).

fof(f56,plain,
    ( r4
  <=> ! [X0,X1,X2] : is_a_theorem(implies(or(X0,or(X1,X2)),or(X1,or(X0,X2)))) ),
    inference(rectify,[],[f25]) ).

fof(f57,plain,
    ( r5
  <=> ! [X0,X1,X2] : is_a_theorem(implies(implies(X1,X2),implies(or(X0,X1),or(X0,X2)))) ),
    inference(rectify,[],[f26]) ).

fof(f58,plain,
    ~ cn3,
    inference(flattening,[],[f46]) ).

fof(f59,plain,
    ( r5
   => ! [X0,X1,X2] : is_a_theorem(implies(implies(X1,X2),implies(or(X0,X1),or(X0,X2)))) ),
    inference(unused_predicate_definition_removal,[],[f57]) ).

fof(f60,plain,
    ( r4
   => ! [X0,X1,X2] : is_a_theorem(implies(or(X0,or(X1,X2)),or(X1,or(X0,X2)))) ),
    inference(unused_predicate_definition_removal,[],[f56]) ).

fof(f61,plain,
    ( r3
   => ! [X0,X1] : is_a_theorem(implies(or(X0,X1),or(X1,X0))) ),
    inference(unused_predicate_definition_removal,[],[f55]) ).

fof(f62,plain,
    ( r2
   => ! [X0,X1] : is_a_theorem(implies(X1,or(X0,X1))) ),
    inference(unused_predicate_definition_removal,[],[f54]) ).

fof(f63,plain,
    ( r1
   => ! [X0] : is_a_theorem(implies(or(X0,X0),X0)) ),
    inference(unused_predicate_definition_removal,[],[f53]) ).

fof(f64,plain,
    ( ! [X0] : is_a_theorem(implies(implies(not(X0),X0),X0))
   => cn3 ),
    inference(unused_predicate_definition_removal,[],[f52]) ).

fof(f66,plain,
    ( modus_ponens
   => ! [X0,X1] :
        ( ( is_a_theorem(implies(X0,X1))
          & is_a_theorem(X0) )
       => is_a_theorem(X1) ) ),
    inference(unused_predicate_definition_removal,[],[f1]) ).

fof(f69,plain,
    ( ! [X0,X1] :
        ( is_a_theorem(X1)
        | ~ is_a_theorem(implies(X0,X1))
        | ~ is_a_theorem(X0) )
    | ~ modus_ponens ),
    inference(ennf_transformation,[],[f66]) ).

fof(f70,plain,
    ( ! [X0,X1] :
        ( is_a_theorem(X1)
        | ~ is_a_theorem(implies(X0,X1))
        | ~ is_a_theorem(X0) )
    | ~ modus_ponens ),
    inference(flattening,[],[f69]) ).

fof(f72,plain,
    ( cn3
    | ? [X0] : ~ is_a_theorem(implies(implies(not(X0),X0),X0)) ),
    inference(ennf_transformation,[],[f64]) ).

fof(f73,plain,
    ( ! [X0] : is_a_theorem(implies(or(X0,X0),X0))
    | ~ r1 ),
    inference(ennf_transformation,[],[f63]) ).

fof(f74,plain,
    ( ! [X0,X1] : is_a_theorem(implies(X1,or(X0,X1)))
    | ~ r2 ),
    inference(ennf_transformation,[],[f62]) ).

fof(f75,plain,
    ( ! [X0,X1] : is_a_theorem(implies(or(X0,X1),or(X1,X0)))
    | ~ r3 ),
    inference(ennf_transformation,[],[f61]) ).

fof(f76,plain,
    ( ! [X0,X1,X2] : is_a_theorem(implies(or(X0,or(X1,X2)),or(X1,or(X0,X2))))
    | ~ r4 ),
    inference(ennf_transformation,[],[f60]) ).

fof(f77,plain,
    ( ! [X0,X1,X2] : is_a_theorem(implies(implies(X1,X2),implies(or(X0,X1),or(X0,X2))))
    | ~ r5 ),
    inference(ennf_transformation,[],[f59]) ).

fof(f80,plain,
    ( ! [X0,X1] : implies(X0,X1) = or(not(X0),X1)
    | ~ op_implies_or ),
    inference(ennf_transformation,[],[f30]) ).

fof(f82,plain,
    ( ? [X0] : ~ is_a_theorem(implies(implies(not(X0),X0),X0))
   => ~ is_a_theorem(implies(implies(not(sK0),sK0),sK0)) ),
    introduced(choice_axiom,[]) ).

fof(f83,plain,
    ( cn3
    | ~ is_a_theorem(implies(implies(not(sK0),sK0),sK0)) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f72,f82]) ).

fof(f84,plain,
    ! [X0,X1] :
      ( is_a_theorem(X1)
      | ~ is_a_theorem(implies(X0,X1))
      | ~ is_a_theorem(X0)
      | ~ modus_ponens ),
    inference(cnf_transformation,[],[f70]) ).

fof(f86,plain,
    ( cn3
    | ~ is_a_theorem(implies(implies(not(sK0),sK0),sK0)) ),
    inference(cnf_transformation,[],[f83]) ).

fof(f87,plain,
    ! [X0] :
      ( is_a_theorem(implies(or(X0,X0),X0))
      | ~ r1 ),
    inference(cnf_transformation,[],[f73]) ).

fof(f88,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(X1,or(X0,X1)))
      | ~ r2 ),
    inference(cnf_transformation,[],[f74]) ).

fof(f89,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(or(X0,X1),or(X1,X0)))
      | ~ r3 ),
    inference(cnf_transformation,[],[f75]) ).

fof(f90,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(implies(or(X0,or(X1,X2)),or(X1,or(X0,X2))))
      | ~ r4 ),
    inference(cnf_transformation,[],[f76]) ).

fof(f91,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(implies(implies(X1,X2),implies(or(X0,X1),or(X0,X2))))
      | ~ r5 ),
    inference(cnf_transformation,[],[f77]) ).

fof(f94,plain,
    ! [X0,X1] :
      ( implies(X0,X1) = or(not(X0),X1)
      | ~ op_implies_or ),
    inference(cnf_transformation,[],[f80]) ).

fof(f96,plain,
    op_implies_or,
    inference(cnf_transformation,[],[f32]) ).

fof(f99,plain,
    modus_ponens,
    inference(cnf_transformation,[],[f35]) ).

fof(f100,plain,
    r1,
    inference(cnf_transformation,[],[f36]) ).

fof(f101,plain,
    r2,
    inference(cnf_transformation,[],[f37]) ).

fof(f102,plain,
    r3,
    inference(cnf_transformation,[],[f38]) ).

fof(f103,plain,
    r4,
    inference(cnf_transformation,[],[f39]) ).

fof(f104,plain,
    r5,
    inference(cnf_transformation,[],[f40]) ).

fof(f108,plain,
    ~ cn3,
    inference(cnf_transformation,[],[f58]) ).

cnf(c_49,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | ~ is_a_theorem(X0)
    | ~ modus_ponens
    | is_a_theorem(X1) ),
    inference(cnf_transformation,[],[f84]) ).

cnf(c_51,plain,
    ( ~ is_a_theorem(implies(implies(not(sK0),sK0),sK0))
    | cn3 ),
    inference(cnf_transformation,[],[f86]) ).

cnf(c_52,plain,
    ( ~ r1
    | is_a_theorem(implies(or(X0,X0),X0)) ),
    inference(cnf_transformation,[],[f87]) ).

cnf(c_53,plain,
    ( ~ r2
    | is_a_theorem(implies(X0,or(X1,X0))) ),
    inference(cnf_transformation,[],[f88]) ).

cnf(c_54,plain,
    ( ~ r3
    | is_a_theorem(implies(or(X0,X1),or(X1,X0))) ),
    inference(cnf_transformation,[],[f89]) ).

cnf(c_55,plain,
    ( ~ r4
    | is_a_theorem(implies(or(X0,or(X1,X2)),or(X1,or(X0,X2)))) ),
    inference(cnf_transformation,[],[f90]) ).

cnf(c_56,plain,
    ( ~ r5
    | is_a_theorem(implies(implies(X0,X1),implies(or(X2,X0),or(X2,X1)))) ),
    inference(cnf_transformation,[],[f91]) ).

cnf(c_59,plain,
    ( ~ op_implies_or
    | or(not(X0),X1) = implies(X0,X1) ),
    inference(cnf_transformation,[],[f94]) ).

cnf(c_61,plain,
    op_implies_or,
    inference(cnf_transformation,[],[f96]) ).

cnf(c_64,plain,
    modus_ponens,
    inference(cnf_transformation,[],[f99]) ).

cnf(c_65,plain,
    r1,
    inference(cnf_transformation,[],[f100]) ).

cnf(c_66,plain,
    r2,
    inference(cnf_transformation,[],[f101]) ).

cnf(c_67,plain,
    r3,
    inference(cnf_transformation,[],[f102]) ).

cnf(c_68,plain,
    r4,
    inference(cnf_transformation,[],[f103]) ).

cnf(c_69,plain,
    r5,
    inference(cnf_transformation,[],[f104]) ).

cnf(c_73,negated_conjecture,
    ~ cn3,
    inference(cnf_transformation,[],[f108]) ).

cnf(c_84,plain,
    is_a_theorem(implies(X0,or(X1,X0))),
    inference(global_subsumption_just,[status(thm)],[c_53,c_66,c_53]) ).

cnf(c_87,plain,
    is_a_theorem(implies(or(X0,X0),X0)),
    inference(global_subsumption_just,[status(thm)],[c_52,c_65,c_52]) ).

cnf(c_92,plain,
    is_a_theorem(implies(or(X0,X1),or(X1,X0))),
    inference(global_subsumption_just,[status(thm)],[c_54,c_67,c_54]) ).

cnf(c_95,plain,
    or(not(X0),X1) = implies(X0,X1),
    inference(global_subsumption_just,[status(thm)],[c_59,c_61,c_59]) ).

cnf(c_101,plain,
    ( ~ is_a_theorem(X0)
    | ~ is_a_theorem(implies(X0,X1))
    | is_a_theorem(X1) ),
    inference(global_subsumption_just,[status(thm)],[c_49,c_64,c_49]) ).

cnf(c_102,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | ~ is_a_theorem(X0)
    | is_a_theorem(X1) ),
    inference(renaming,[status(thm)],[c_101]) ).

cnf(c_112,plain,
    is_a_theorem(implies(implies(X0,X1),implies(or(X2,X0),or(X2,X1)))),
    inference(global_subsumption_just,[status(thm)],[c_56,c_69,c_56]) ).

cnf(c_115,plain,
    is_a_theorem(implies(or(X0,or(X1,X2)),or(X1,or(X0,X2)))),
    inference(global_subsumption_just,[status(thm)],[c_55,c_68,c_55]) ).

cnf(c_134,plain,
    X0 = X0,
    theory(equality) ).

cnf(c_136,plain,
    ( X0 != X1
    | X2 != X1
    | X2 = X0 ),
    theory(equality) ).

cnf(c_137,plain,
    ( X0 != X1
    | ~ is_a_theorem(X1)
    | is_a_theorem(X0) ),
    theory(equality) ).

cnf(c_138,plain,
    ( X0 != X1
    | X2 != X3
    | implies(X0,X2) = implies(X1,X3) ),
    theory(equality) ).

cnf(c_139,plain,
    ( X0 != X1
    | not(X0) = not(X1) ),
    theory(equality) ).

cnf(c_143,plain,
    ( sK0 != sK0
    | not(sK0) = not(sK0) ),
    inference(instantiation,[status(thm)],[c_139]) ).

cnf(c_146,plain,
    sK0 = sK0,
    inference(instantiation,[status(thm)],[c_134]) ).

cnf(c_333,plain,
    ( or(X0,X1) != X2
    | X3 != X2
    | X3 = or(X0,X1) ),
    inference(instantiation,[status(thm)],[c_136]) ).

cnf(c_447,plain,
    ( ~ is_a_theorem(or(X0,X0))
    | is_a_theorem(X0) ),
    inference(resolution,[status(thm)],[c_102,c_87]) ).

cnf(c_451,plain,
    ( ~ is_a_theorem(or(X0,X1))
    | is_a_theorem(or(X1,X0)) ),
    inference(resolution,[status(thm)],[c_102,c_92]) ).

cnf(c_506,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | is_a_theorem(or(not(X0),X1)) ),
    inference(resolution,[status(thm)],[c_137,c_95]) ).

cnf(c_550,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | is_a_theorem(implies(or(X2,X0),or(X2,X1))) ),
    inference(resolution,[status(thm)],[c_112,c_102]) ).

cnf(c_563,plain,
    ( ~ is_a_theorem(or(X0,or(X1,X2)))
    | is_a_theorem(or(X1,or(X0,X2))) ),
    inference(resolution,[status(thm)],[c_115,c_102]) ).

cnf(c_600,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | ~ is_a_theorem(or(X2,X0))
    | is_a_theorem(or(X2,X1)) ),
    inference(resolution,[status(thm)],[c_550,c_102]) ).

cnf(c_609,plain,
    ( ~ is_a_theorem(implies(X0,or(X1,X2)))
    | is_a_theorem(or(X1,or(not(X0),X2))) ),
    inference(resolution,[status(thm)],[c_563,c_506]) ).

cnf(c_662,plain,
    ( or(not(X0),X1) != implies(X0,X1)
    | X2 != implies(X0,X1)
    | X2 = or(not(X0),X1) ),
    inference(instantiation,[status(thm)],[c_333]) ).

cnf(c_795,plain,
    ( X0 != X1
    | X1 = X0 ),
    inference(resolution,[status(thm)],[c_136,c_134]) ).

cnf(c_835,plain,
    ( X0 != X1
    | X2 != X3
    | ~ is_a_theorem(implies(X1,X3))
    | is_a_theorem(implies(X0,X2)) ),
    inference(resolution,[status(thm)],[c_138,c_137]) ).

cnf(c_994,plain,
    implies(X0,X1) = or(not(X0),X1),
    inference(resolution,[status(thm)],[c_795,c_95]) ).

cnf(c_1020,plain,
    ( ~ is_a_theorem(or(not(X0),X1))
    | is_a_theorem(implies(X0,X1)) ),
    inference(resolution,[status(thm)],[c_994,c_137]) ).

cnf(c_1684,plain,
    ( X0 != X1
    | X2 != or(X3,X1)
    | is_a_theorem(implies(X0,X2)) ),
    inference(resolution,[status(thm)],[c_835,c_84]) ).

cnf(c_2611,plain,
    ( or(not(X0),X1) != implies(X0,X1)
    | implies(X2,X3) != implies(X0,X1)
    | implies(X2,X3) = or(not(X0),X1) ),
    inference(instantiation,[status(thm)],[c_662]) ).

cnf(c_4764,plain,
    ( X0 != X1
    | is_a_theorem(implies(X0,or(X2,X1))) ),
    inference(resolution,[status(thm)],[c_1684,c_134]) ).

cnf(c_4907,plain,
    ( X0 != X1
    | ~ is_a_theorem(X0)
    | is_a_theorem(or(X2,X1)) ),
    inference(resolution,[status(thm)],[c_4764,c_102]) ).

cnf(c_5330,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | is_a_theorem(or(X2,or(not(X0),X1))) ),
    inference(resolution,[status(thm)],[c_4907,c_994]) ).

cnf(c_6881,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | is_a_theorem(or(not(X0),or(X2,X1))) ),
    inference(resolution,[status(thm)],[c_5330,c_563]) ).

cnf(c_8035,plain,
    ( X0 != or(X1,X2)
    | X3 != X4
    | implies(X0,X3) = implies(or(X1,X2),X4) ),
    inference(instantiation,[status(thm)],[c_138]) ).

cnf(c_8168,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | is_a_theorem(implies(X0,or(X2,X1))) ),
    inference(resolution,[status(thm)],[c_6881,c_1020]) ).

cnf(c_8195,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | ~ is_a_theorem(X0)
    | is_a_theorem(or(X2,X1)) ),
    inference(resolution,[status(thm)],[c_8168,c_102]) ).

cnf(c_8397,plain,
    ( ~ is_a_theorem(or(X0,X1))
    | is_a_theorem(or(X2,or(X1,X0))) ),
    inference(resolution,[status(thm)],[c_8195,c_92]) ).

cnf(c_9099,plain,
    ( ~ is_a_theorem(or(X0,X1))
    | is_a_theorem(or(X1,or(X2,X0))) ),
    inference(resolution,[status(thm)],[c_8397,c_563]) ).

cnf(c_9248,plain,
    ( ~ is_a_theorem(or(X0,or(X1,X0)))
    | is_a_theorem(or(X1,X0)) ),
    inference(resolution,[status(thm)],[c_9099,c_447]) ).

cnf(c_16318,plain,
    ( X0 != implies(X1,X2)
    | ~ is_a_theorem(implies(X1,X2))
    | is_a_theorem(X0) ),
    inference(instantiation,[status(thm)],[c_137]) ).

cnf(c_18224,plain,
    ( implies(X0,X1) != or(not(X2),X3)
    | X4 != X5
    | implies(implies(X0,X1),X4) = implies(or(not(X2),X3),X5) ),
    inference(instantiation,[status(thm)],[c_8035]) ).

cnf(c_20675,plain,
    ( ~ is_a_theorem(implies(X0,or(X1,X1)))
    | is_a_theorem(or(not(X0),X1)) ),
    inference(resolution,[status(thm)],[c_609,c_9248]) ).

cnf(c_21497,plain,
    is_a_theorem(or(not(X0),X0)),
    inference(resolution,[status(thm)],[c_20675,c_84]) ).

cnf(c_21539,plain,
    is_a_theorem(or(X0,not(X0))),
    inference(resolution,[status(thm)],[c_21497,c_451]) ).

cnf(c_21544,plain,
    is_a_theorem(or(X0,or(not(or(X0,X1)),X1))),
    inference(resolution,[status(thm)],[c_21497,c_563]) ).

cnf(c_21883,plain,
    ( ~ is_a_theorem(implies(not(X0),X1))
    | is_a_theorem(or(X0,X1)) ),
    inference(resolution,[status(thm)],[c_21539,c_600]) ).

cnf(c_22759,plain,
    is_a_theorem(implies(X0,or(not(or(not(X0),X1)),X1))),
    inference(resolution,[status(thm)],[c_21544,c_1020]) ).

cnf(c_26125,plain,
    ( implies(X0,X1) != implies(X2,X3)
    | ~ is_a_theorem(implies(X2,X3))
    | is_a_theorem(implies(X0,X1)) ),
    inference(instantiation,[status(thm)],[c_16318]) ).

cnf(c_32288,plain,
    is_a_theorem(or(X0,or(not(or(not(not(X0)),X1)),X1))),
    inference(resolution,[status(thm)],[c_22759,c_21883]) ).

cnf(c_40965,plain,
    ( implies(implies(not(sK0),sK0),sK0) != implies(X0,X1)
    | ~ is_a_theorem(implies(X0,X1))
    | is_a_theorem(implies(implies(not(sK0),sK0),sK0)) ),
    inference(instantiation,[status(thm)],[c_26125]) ).

cnf(c_50930,plain,
    ( not(sK0) != X0
    | sK0 != X1
    | implies(not(sK0),sK0) = implies(X0,X1) ),
    inference(instantiation,[status(thm)],[c_138]) ).

cnf(c_50935,plain,
    ( or(not(X0),X1) != implies(X0,X1)
    | implies(not(sK0),sK0) != implies(X0,X1)
    | implies(not(sK0),sK0) = or(not(X0),X1) ),
    inference(instantiation,[status(thm)],[c_2611]) ).

cnf(c_59057,plain,
    is_a_theorem(or(not(or(not(not(X0)),X0)),X0)),
    inference(resolution,[status(thm)],[c_32288,c_9248]) ).

cnf(c_59097,plain,
    is_a_theorem(implies(or(not(not(X0)),X0),X0)),
    inference(resolution,[status(thm)],[c_59057,c_1020]) ).

cnf(c_59100,plain,
    is_a_theorem(implies(or(not(not(sK0)),sK0),sK0)),
    inference(instantiation,[status(thm)],[c_59097]) ).

cnf(c_60752,plain,
    ( implies(not(sK0),sK0) != or(not(X0),X1)
    | sK0 != X2
    | implies(implies(not(sK0),sK0),sK0) = implies(or(not(X0),X1),X2) ),
    inference(instantiation,[status(thm)],[c_18224]) ).

cnf(c_60754,plain,
    ( implies(implies(not(sK0),sK0),sK0) != implies(or(not(X0),X1),X2)
    | ~ is_a_theorem(implies(or(not(X0),X1),X2))
    | is_a_theorem(implies(implies(not(sK0),sK0),sK0)) ),
    inference(instantiation,[status(thm)],[c_40965]) ).

cnf(c_61583,plain,
    ( not(sK0) != not(X0)
    | sK0 != X1
    | implies(not(sK0),sK0) = implies(not(X0),X1) ),
    inference(instantiation,[status(thm)],[c_50930]) ).

cnf(c_61585,plain,
    ( not(sK0) != not(sK0)
    | sK0 != sK0
    | implies(not(sK0),sK0) = implies(not(sK0),sK0) ),
    inference(instantiation,[status(thm)],[c_61583]) ).

cnf(c_73538,plain,
    ( or(not(not(sK0)),sK0) != implies(not(sK0),sK0)
    | implies(not(sK0),sK0) != implies(not(sK0),sK0)
    | implies(not(sK0),sK0) = or(not(not(sK0)),sK0) ),
    inference(instantiation,[status(thm)],[c_50935]) ).

cnf(c_73854,plain,
    or(not(not(sK0)),sK0) = implies(not(sK0),sK0),
    inference(instantiation,[status(thm)],[c_95]) ).

cnf(c_88463,plain,
    ( implies(not(sK0),sK0) != or(not(not(sK0)),sK0)
    | sK0 != X0
    | implies(implies(not(sK0),sK0),sK0) = implies(or(not(not(sK0)),sK0),X0) ),
    inference(instantiation,[status(thm)],[c_60752]) ).

cnf(c_88464,plain,
    ( implies(not(sK0),sK0) != or(not(not(sK0)),sK0)
    | sK0 != sK0
    | implies(implies(not(sK0),sK0),sK0) = implies(or(not(not(sK0)),sK0),sK0) ),
    inference(instantiation,[status(thm)],[c_88463]) ).

cnf(c_101861,plain,
    ( implies(implies(not(sK0),sK0),sK0) != implies(or(not(not(sK0)),sK0),X0)
    | ~ is_a_theorem(implies(or(not(not(sK0)),sK0),X0))
    | is_a_theorem(implies(implies(not(sK0),sK0),sK0)) ),
    inference(instantiation,[status(thm)],[c_60754]) ).

cnf(c_101862,plain,
    ( implies(implies(not(sK0),sK0),sK0) != implies(or(not(not(sK0)),sK0),sK0)
    | ~ is_a_theorem(implies(or(not(not(sK0)),sK0),sK0))
    | is_a_theorem(implies(implies(not(sK0),sK0),sK0)) ),
    inference(instantiation,[status(thm)],[c_101861]) ).

cnf(c_101863,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_101862,c_88464,c_73854,c_73538,c_61585,c_59100,c_146,c_143,c_51,c_73]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.12  % Problem  : LCL498+1 : TPTP v8.1.2. Released v3.3.0.
% 0.12/0.13  % Command  : run_iprover %s %d THM
% 0.14/0.34  % Computer : n020.cluster.edu
% 0.14/0.34  % Model    : x86_64 x86_64
% 0.14/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.34  % Memory   : 8042.1875MB
% 0.14/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.34  % CPULimit : 300
% 0.14/0.34  % WCLimit  : 300
% 0.14/0.34  % DateTime : Thu May  2 19:11:46 EDT 2024
% 0.14/0.34  % CPUTime  : 
% 0.21/0.47  Running first-order theorem proving
% 0.21/0.47  Running: /export/starexec/sandbox2/solver/bin/run_problem --schedule fof_schedule --heuristic_context casc_unsat --no_cores 8 /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 74.54/10.83  % SZS status Started for theBenchmark.p
% 74.54/10.83  % SZS status Theorem for theBenchmark.p
% 74.54/10.83  
% 74.54/10.83  %---------------- iProver v3.9 (pre CASC 2024/SMT-COMP 2024) ----------------%
% 74.54/10.83  
% 74.54/10.83  ------  iProver source info
% 74.54/10.83  
% 74.54/10.83  git: date: 2024-05-02 19:28:25 +0000
% 74.54/10.83  git: sha1: a33b5eb135c74074ba803943bb12f2ebd971352f
% 74.54/10.83  git: non_committed_changes: false
% 74.54/10.83  
% 74.54/10.83  ------ Parsing...
% 74.54/10.83  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 74.54/10.83  
% 74.54/10.83  ------ Preprocessing... sf_s  rm: 13 0s  sf_e  sf_s  rm: 1 0s  sf_e 
% 74.54/10.83  
% 74.54/10.83  ------ Preprocessing...
% 74.54/10.83  
% 74.54/10.83  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 74.54/10.83  ------ Proving...
% 74.54/10.83  ------ Problem Properties 
% 74.54/10.83  
% 74.54/10.83  
% 74.54/10.83  clauses                                 12
% 74.54/10.83  conjectures                             0
% 74.54/10.83  EPR                                     0
% 74.54/10.83  Horn                                    12
% 74.54/10.83  unary                                   10
% 74.54/10.83  binary                                  1
% 74.54/10.83  lits                                    15
% 74.54/10.83  lits eq                                 5
% 74.54/10.83  fd_pure                                 0
% 74.54/10.83  fd_pseudo                               0
% 74.54/10.83  fd_cond                                 0
% 74.54/10.83  fd_pseudo_cond                          1
% 74.54/10.83  AC symbols                              0
% 74.54/10.83  
% 74.54/10.83  ------ Input Options Time Limit: Unbounded
% 74.54/10.83  
% 74.54/10.83  
% 74.54/10.83  ------ 
% 74.54/10.83  Current options:
% 74.54/10.83  ------ 
% 74.54/10.83  
% 74.54/10.83  
% 74.54/10.83  
% 74.54/10.83  
% 74.54/10.83  ------ Proving...
% 74.54/10.83  
% 74.54/10.83  
% 74.54/10.83  % SZS status Theorem for theBenchmark.p
% 74.54/10.83  
% 74.54/10.83  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 74.54/10.83  
% 74.54/10.83  
%------------------------------------------------------------------------------